― 9 ―
9. Troubleshooting
10. Product Warranty
If the expected performance is unachievable after installation of the steam trap, read chapters 5
and 6 again, and check the following points for the appropriate corrective measures.
Problem
Cause
Remedy
No condensate
is discharged
(blocked) or
discharge is
poor
Steam is
discharged or
leaks from the
trap outlet
(blowing)
(steam leakage)
Steam leaks from
a place other than
the trap outlet
The ball-bucket is stuck to the drain-jet
Drain-jet valve port, screen or piping
are clogged with rust or scale
Steam-locking has occurred
Flow exceeds trap's rated capacity
The trap operating pressure exceeds
the maximum specified pressure, or
there is insufficient pressure differential
between the trap inlet and outlet
Rust and scale has accumulated on
the drain-jet port or on the ball-bucket
surface
The drain-jacket is damaged
The ball-bucket is misshapen or
damaged
Trap is installed above the maximum
allowable inclination angle
Vibration of trap occurs
The bimetal strip is damaged
Deterioration of or damage to gaskets
Improper tightening torques were used
Clean
Clean
Blowdown through the bypass or
close the trap inlet valve and allow
the trap to cool
Check specifications and reselect
trap suitable for actual flow
Compare specifications and actual
operating conditions
Clean
Replace with new drain-jacket
Replace with a new ball-bucket
Correct the installation
Lengthen inlet piping, then fasten it
securely
Replace with a new bimetal strip
Replace with new gaskets
Tighten to the proper torque
NOTE:
1. Blowing may occur on bucket-type steam traps used at less than 10% of their maximum
discharge capacity. Therefore, do not use this trap for applications in which only small
quantities of condensate are produced.
2. When replacing parts with new, use the parts list for reference, and replace with parts
from the Maintenance Kit, Repair Kit or UFO Kit. Please note that replacement parts are
only available as part of a replacement parts kit.
1) Warranty Period: one year after product delivery.
2) TLV CO., LTD. warrants this product to the original purchaser to be free from defective
materials and workmanship. Under this warranty, the product will be repaired or replaced at
our option, without charge for parts or labor.
3) This product warranty will not apply to cosmetic defects, nor to any product whose exterior
has been damaged or defaced; nor does it apply in the following cases:
1. Malfunction due to improper installation, use, handling, etc., by other than TLV CO., LTD.
authorized service representatives.
2. Malfunctions due to dirt, scale, rust, etc.
3. Malfunctions due to improper disassembly and reassembly, or inadequate inspection and
maintenance by other than TLV CO., LTD. authorized service representatives.
4. Malfunction due to disasters or forces of nature.
5. Accidents or malfunctions due to any other cause beyond the control of TLV CO., LTD.
4) Under no circumstances will TLV CO., LTD. be liable for connsequential economic loss or
damage or consequential damage to property.
